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Scientific Name | Cyrtanthus eucallus R.A.Dyer |
Higher Classification | Monocotyledons |
Family | AMARYLLIDACEAE |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2011/09/26 |
Assessor(s) | M. Lötter, J.E. Burrows & L. von Staden |
Justification | Known from one location and potentially threatened by alien plant invasion. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Mpumalanga |
Range | Barberton. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Barberton Montane Grassland, Scarp Forest |
Description | Rock crevices and cracks on large boulders and vertical cliffs along streamsides in moist wooded ravines. |
Threats |
| Most of the valley in which this species occurs was already afforested by 1963 (J. Burrows pers. comm.), before the discovery of this species. It is however unlikely that habitat loss to forestry plantations could have affected this species as its habitat is unsuitable for the establishment of plantations.
Alien invasive species is a big problem in the riparian areas near Barberton, and a potential threat to this species (M. Lotter, pers. comm.). Recent observations of plants at the only known locality recorded scattered alien plants in the area, but invasions are unlikely to be causing decline at present. |
Population |
Plants occur in scattered clumps in suitable habitat on large boulders or cliff faces. Only a few plants were seen during a recent survey of the only known locality, however, it is difficult to estimate the population size as the habitat is generally very inaccessible.
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Population trend | Stable |
Conservation |
| Not currently conserved in any formally protected area. |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Cyrtanthus eucallus R.A.Dyer | VU D2 | Raimondo et al. (2009) | | Cyrtanthus eucallus R.A.Dyer | Rare | Hilton-Taylor (1996) | | Cyrtanthus eucallus R.A.Dyer | Rare | Hall et al. (1980) | |
Bibliography |
Dyer, R.A. 1964. Notes and new records of African Plants: Amaryllidaceae: Cyrtanthus eucallus. Bothalia 8:163.
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.
Reid, C. and Dyer, R.A. 1984. A review of the southern African species of Cyrtanthus. The American Plant Life Society, La Jolla, California.
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Citation |
| Lötter, M., Burrows, J.E. & von Staden, L. 2011. Cyrtanthus eucallus R.A.Dyer. National Assessment: Red List of South African Plants version . Accessed on 2025/05/10 |
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